Window sash support



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A. PERRETON WINDOW SASH SUPPORT Filed July 10, 1943 v 8 sheets-sheet 8 broken away; I 1 I Patented Apr. 24, 1 945 1 UNITED STATES PATENT OFFICE My invention relates to a support for movably mounting the sash of a window with relation to the window frame and window opening. I

The invention, which has among its objects the provision of a support for moving the sash into various positions, will be best understood from the following description when read in the light of the accompanying drawings of, an embodiment of the invention selected for illustrative purposes, the scope of the invention being more particularly pointed out in the appended claims.

In the drawings 7 I Figs. 1 to 5 are more or less schematic drawings illustrating various kinds of positions into which the window sash may be moved, Figs. 2 and 3 being vertical sections through the window opening, and Figs. 4 and 5 being horizontal sections through the window opening;

Fig. 6 is a front elevation,,with parts broken away, of the assembled window frame, window sash, and support for the latter, with the sash in closed. position, the figure being a, section on the line 6-6 of Fig. 7;

Figs. 7, 8 and 9 are respectively sectionsyon an enlarged scale, on the lines 'l-I, 8-8 and 9-4! of Fig. 6; Fig. 10 is an approximate section on the line Ill-I of Fig. 6, with the sash which liesbehind the section line being shown forillustrative purposes;

Fig. 11 is a section corresponding to Fig. 10 with the window sash moved into the open position schematically illustrated byFigs. 1 and 2; Figs. 12, 13, 14 and 15 illustratedetails of the constructionof the pivotaland sliding supports for the sash supports, Figs. 12 and 13 being front elevations, Fig.. 14 being a. section on the line I4-I4 of Figs. 12 and 13, and Fig. 15 being a sectionon the line I -I 5 of Fig. 13; I

Fig. 16 is a detail, on an enlarged scale, of part of the mechanism shown by Figs. andull;

Fig. 1'7 is a side elevation of the. partsaccording to Fig. 16, and corresponds to a section on the line l1-I| of Fig. 19;

Fig. 18 shows a portion of Fig. 16 with the parts in a different operative position; I

Fig. 19 is a section on the line I9-I 9 of Fig. 16;

Figs. 20, 21 and 22 are respectively sections on the lines 20-20, 2|-2| and 22-42 of Fig. 16,

with parts omitted;

"Fig. 23 is a section on the line 2323 of 19; Fig. 24 is a section corresponding to Fig. 7 with the window sash moved into the position schematically illustrated y Fig. 5, with parts welded together.

Fig. 25 is an elevation according to Fig. 24, as viewed from the right, with parts omitted, and corresponds to the lower the parts in a different operative position;

Fig. 26 is a section on the line 26-26 of Fig. 25; and 5 I Fig. 27 is a section corresponding to Fig. 10

with the window sash moved intothe position schematically illustrated by Fig. I

Referring to the drawings, the window frame F and sash frame S illustrated are of metal construction, it being understood however that the invention is not limited tometal window frames and sash frames, but is equally applicable to those formed of other materials such as wood. As shown, fitted into the window opening I is a rectangular window frame comprising top and bottom Z-bars 3 and side Z-bars 5 (Fig.6) which are beveled at their ends, as indicated at l, and Cooperating with the window frame is a sash having a pane 9' (Fig. 7), this pane being supported by a, rectangular sash frame comprising the top and bottom Z-bars II (Fig. 6) and side Z-bars I5 which are beveled at their ends, as indicated at I 1, and weldedtogether.

As best illustrated in Figs. 6, 7, 8, and 10 to 15,

the sash is movably supported ,on the window frame at each of opposite vertical sidesthereof by a, link arrangement comprising a long bar I9 and short bars 2I and 23, the two latter respectively lying at opposite sides .of the bar I9. These three bars are shown as pivotally connected to each other for relative swinging by a pivot pin 25 positioned at an intermediateportion of the length of the bar I9 and at the upper end of the bar 23, the bar 2| overlapping the upper portion of the bar 23 as clearly shown in Figs. 6 and 11. When the window is to be moved into the position schematically illustrated by Figs.- 1

and 2, or the positionsschematically illustrated by Figs. 4 and 5, the lower end of the'bar 2H is locked against movement relative to the bar 23 by mechanism hereinafter described so that under such conditions these two bars operatively form one bar pivotally connected intermediate its;length to the bar I9 intermediate the length of the latter. I I

As illustrated in Figs. 7, '8, and 11 to 15, the upper ends of the bars I9 and 2| are connected to the window frame and sash frame, respectively, for both slidingand swinging movement in a vertical plane relative thereto, while the lower ends of the bars nected to the sashframe and window frame, re-

spectively, for swinging movement ,ina vertical portion of Fig. 10 with I9 and 23 are pivotally conto the window frame that they can swing horizontally toward the opposite side of that frame, while the upper end of each bar 2| and lower end of each bar l9 are so connected to the sash frame that either vertical edge of the latter may be swung horizontally away from the window frame about its connection to the bars 2| and I!) at the opposite side of the window frame.

As illustrated, these sliding and swinging connections are provided by the upper members 21 and 29 fixedly carried by the sash frame and window frame, respectively, and by the lower members 3| and 33 fixedly carried by the sash frame and window frame, respectively.

As shown, each of the members '29 is struck up of sheet metal to provide an elongated part having attaching flanges 35 secured by screws 31 or the like (Fig. 12) to those sides of the webs of the Z-bars which face the sash frame. The flanges at opposite sides of the member are connected by a web 39 which is arcuate in crosssection as shown in Figs. '7, 8 and 12, this web being provided with an elongated slot 4| positioned with respect to its longitudinal center line at one side of the longitudinal medial plane'of the web. lllach of the members 33, as best illustrated in Figs. 13, 14 and 15, is of generally similar construction to the members 29, being struck up of sheet metaland having attaching flanges 43 secured by screws 45 or the like (Fig, 13) to those sides of the webs of the Z-bars 5 which face the sash frame, the slot 41 in the arcuate Web 49 of the member, like the slot 4| in the member 29, being mostly at one side of the vertical medial axis of the member as positioned on the window frame, but not being vertically elongated. The members 2'1 and -3|- are of like construction to the members 29 and 33 respectively. As best illustrated in Figs. 7 and 8, the bars l9, 2| and 23 are connected to the members 27, 29, 3| and 33 by fulcrum pins having heads 5| received between those members and the webs of the Z-bars to which they are attached and having' shanks 53 extending through the slots 4| and 41 and screw-threaded into the bars. As shown, the sides of the heads 5| adjacent the shanks 53 are each a fragment of the surface of a sphere of the same radius as the arc of curvature of the web -39 or 49 with which the head contacts. The thickness of the head and curvature of its opposite side are such that in all positions of swinging of the shank '53 that side will contact with the adjacent web of the Z-bar while its other side will contact with the web 35 or 49, so as effectively to prevent movement of the head longitudinally of the shank. The attaching members .21, 29, 3| and 33 are so placed in each instance as to position their slots to permit the bars I9, 2| and 23 to swing relative to the window frame, and'the window sash to swing relative to the bars, in the manner hereinbefore described. It will be noted in Figs. 7 and 8 that in each instance, in the position of parts shown by those figures, the relative swinging permitted is at one shown by Fig. 11.

extreme of its movement because of the shanks 53 being against an edge of the slots which receive them, and that consequently when the sash is moved into the position shown by Figs. 1, 2 and 11 it cannot sway sideways relative to the window opening. For example, if the bars I9 and 23 at the left hand side of the window when the sash is in the position shown by Fig. 11 should attempt to. swing to the right, as viewed in Figs. 7 and 8, about their pivotal connections to the window frame such swinging would be prevented by the pivotal connections to the window frame of the bars l9 and 23 at the right hand side of the window, because although the connections of these bars at the left hand side of the window would permit them to swing to the right the bars at the right hand side of the window can not swing to the right. ,The pivotal connections of the bars l9 and 2| to the window sash frame in an obvious manner act similarly to prevent swaying of the sash when it is in its position As best illustrated in Figs. 11, 16 to 23, and 27, the bar 23 at one edge thereof is provided with a flange 55 against which the lower end edge portiOn of the bar 2| abuts when the parts are in the position shown by Figs. '10 and 11, the end of the bar 2| being notched as indicated at 51 (Figs. 16 and 27) for fitting this flangewhile the bar I9 is notched at 59 (Fig. 11) for clearing/ the flange. Normally the notched end of the bar 2| is held against the flange by a. dog 5| engaging the opposite beveled edge 63 of the bar, under which conditions the bars 2| and 23 operatively form one long bar. As shown, the flange 55 and the adjacent portion of the lug formed integrally therewith are provided with a recess 61 (Figs. 21 and 22) for receiving an extension at the base of the dog, which extension is provided with a laterally extending perforated boss 1|. Through the perforation of this boss extends a pivot pin 13 for pivotally mounting the dog, the pin at one end being screw-threadedinto an opening 15 in the boss 16 on the bar 23 and at its opposite end extending through an opening H in the flange 55, In the lug 65 and adjacent portion of the flange 55 is formed an open sided dovetailed slot 19 in which is slidably mounted a longitudinally movable bolt or latch 8|, the upper surface of the latch being provided with a longitudinally extending groove 83 adapted to receive a longitudinally extending bead 85 on the lower surface of the dog 6 When the partsare in the position shown by Figs. 16 and ll'the dog is held in locked position by the latch 8|, the fitting of the bead 85 in the groove 83 insuring against any side movement of the dog in case of loose play between the parts; 8| is moved into its position shown by Fig. 18 the dog may drop and release thelower end of the bar 2|. For holding the latch in its engaged and released positions it is shown (Fig. 19') as formed on one side thereof with a longitudinally extending recess 81 in which is secured by means of screws 89 a leaf spring 9|. As shown, the free end of the spring is provided with a-projection 93 When the latch' At'that end the latch is provided with a recess 89 in which the finger of the hand of the operator may be inserted for sliding the latch.

When the dogs Bl at opposite sides of the win dow are released to unlock the lower ends of the bars 21 at opposite sides of the window from the adjacent bars 23, the bars 23 may be swung about their pivotal connections to the wnidow frame to move the sash into selected positions schematioally shown by Fig. 3 and .best illustrated in Fig. 27. Under these conditions the window is opened a the top and bottom for securing desired ventilation and permitting the outside of the window pane to be-cleaned through the opening at the top of the window. Because of the pivot pins 25 being somewhat below the horizontal medial line of the' sash, the weight of the sash in the embodiment of theinvention'illustrated will cause the opposite ends of the inner top edge of the sash frame slidably to'bear against those of the adjacent flanges of the vertical Z-bars 5 which project toward the vertical medial line of the sash frame, the pivotal connections of the bars 19 at the bottom of the sash permitting such action.

As illustrated (see Figs; and ll), the sash is held'in open and closed positions byalocking bar member indicated in itsentirety by the reference numeral Ill-l, the upper end of which bar member is pivotally connected at 183 for vertical swinging to the end of the h1g6!) formed integrally with the flange as hereinbefore described. As shown, the lug and'bar 'slidably pass through and fit an opening in a plate NM (Figs. 16 and '23) mounted for horizontal and vertical sliding on the adjacent Z-bar 5,which plate acts to close the opening 97 in said bar. As shown, the bar MI is provided on its edge adjacent the window frame with a series of spaced notches N35 adapted'to engage the lower edge of the opening 91 in the Z-bar and adjacent edge of the opening in the plate H14 for securing the bar Hit in adjusted positions. When the window is in closed position the upper of these notches is received in the end of a fulcrumed projection Ill? rigidly carried by the window frame." Adjacent itslower end the bar I0! is provided with a notch H19 for receiving a bail H I for holding the window in locked condition. This bail, togetherwith a further bail H3 for holding the harm its position shown by Fig. 25 for a purpose hereinafter explained, are, as shown in Figs. 10,25 and 26, rotatably mounted on a pin H5 carried at opposite ends by lugs Ml formed integrally with a base H9 rigidly secured to the adjacent vertical Z-bars 5 of the window frame. As clearly illustrated in Fig, 26, the bail III is narrower than the corresponding portion of the bail H3 so that each bail may be employed independently of the other and so that both will lie against the Z-bars when not in use, as will be clear from Figs. 10, 25, 26 and 27.

When the window is to be opened at one vertical edge for securing side ventilation. as schematically shown by Figs. 4 and 5, the same may be done by moving that edge into the position shown by Fig. 11 so as to cause the sash to swing about the pivotal connections of its opposite vertical edge to the upper end of the bar 2i and lower end of the bar til, the upper end of the bar l9 and lower end of the bar 23 at the side of the sash which is opened swinging about their pivotal connections to the window frame, the parts under these conditions taking the position shown by Fig. 24.

It will be observed from Figs. 7 and 3 that to permit the sash to swing relative to the window frameabout the pivotal connection of a vertical edge of the sash to the bars 21 and 19 the sash should be slightly opened at thatedge, for which purposethe bail I 53 is provided. When this bail engages the notch I09 at the lower end 0f the bar Jill, as shown in Fig. 25, the adjacent edge of the window will be moved to the position shown at the right of Fig. 24 sliglitly'to open the window at that edge to permit this swinging. Further topermit this swinging the bar NH issplit adjacent its upper end so as to provide an upper portion l2l- (Figs. 10, ll, 16 and 24) pivotally connected at 23 to thebody of the bar, this pivotal connection permitting the portion 121 to swing transversely relative to the body of the bar; It will be observed that when the bar M1 is pushed outward, as viewed in Figrll, so as to open the adjacent side of the sash to secure side ventilation, asshown in Fig. 24, the outer part 42! of the bar Hi l will swing transversely relativeto the. body of the bar about the pivotal connection 1.23 between the two. The degree of opening of the sash may or course be varied by pushing the bar it! outward to various extents, the limit of the swinging being determined by the transverse widths of the slots H and 41 of themembers -27,

' 28, M and 33 connecting the arms 1 9,?! and 23 tion thereof for relative swinging about a horizontal axis, each member being pivot-ally connected for swinging about a horizontal axis at one end to the sash and at itsoppositeend t0 the window frame, one of thepivotal end connections for each member providing for vertical.

sliding of that connection, one of each of said pairs of members being in two parts each pivotal- 1y connected to the other memberof' the pair at said intermediate portion thereof, and means relcasably locking said parts to each other against relative movement; whereby when said means is in locked condition the sash may be movedbo dily away from the window frame, and when said means is in released condition one horizontal edge of the sash may be moved away from the window frame without movingits oppositeedgeaway from said frame. g

2. A support formovably mounting a sashwith relation to a window frame having at eachside of the sash a pair of crossed members pivotally connected to each otherat an intermediate portion thereof for relative swinging about a horizontal axis, each member being pivotally con-.-

nected for swinging about a horizontal axis at one end to the sash and at its'opposite end to the window frame, one of the pivotal end connections for eachmember providing for vertical sliding of that connection, the pivotal end connections of at leastone of said pairs of members to the sash and the pivotal end connections of at least the other pair to the window frame each having also provision for swinging through a substantially wide are about a vertical axis; whereby by relative. swinging of said members of both pairs of members the sash may be moved bodily away from the window frame, and by relative swinging of the members of only that pair which is connected to the window frame for swinging about vertical axes the adjacent vertical edge of the sash may be swung away from the window frame about the connections of the other pair. to the sash for opening the window at that edge.

3. The support according to claim 1 in which the pivotal end connections of at least one of said pairs of members to the sash and the pivotal end connections of at least the other pair to the window frame each have provision for swinging about a vertical axis; whereby, when the locking means for said parts is in locked condition, by relative swinging of the members of only that pair which is so connected to the window frame the adjacent vertical edge of the sash may beswung away from the window frame about th connections of the other pair to the sash.

, 4. A support for movably mounting a sash with relation to a window frame having at each side of the sash a pair of crossed members pivotally connected to eachother at an intermediate portion thereof for relative swinging about a horizontal axis, each member being connected for swinging through substantially Wide arcs about horizontal and vertical axes at one end to the sash and at its opposite end to the window frame, one

member of each pair also being connected at one edge thereof adjacent the pair so swung; and means restraining said pairs of members against swinging about said vertical axes when said members of each pair are so relatively swung as to move each vertical edge of the sash away from I the window frame alike distance.

5. A support for movably mounting a sash with relation to a window frame having at each side of the sash a pair of crossed members pivotally connected to each other at an intermediate portion thereof for relative swinging about a horizon 6. A support for movably mounting a sash with relation to a Window frame having at each side of the sash a pair of crossed members pivotally connected to each other at an intermediate portion thereof for relative swinging about a horizontal axis, at least the members of one pair being con-' nected for swinging through substantially wide arc about horizontal and vertical axes at one end to the sash and at their other ends to the window frame for swinging about at least horizontal axes, and at least the members of the opposite pair being connected for swinging through substantially wide arcs about horizontal and vertical axes at one end to the window frame and at their other ends to the sash for swinging about at least horizontal axes, one end of each member also being connected to the sash orwindowframe for vertical sliding whereby by relative swinging of the members-of the last mentioned pair to the exclusion of those of the other pair the sash will swing in a horizontal plane about its connections to said other pair for opening the window at the vertical edge of thesash adjacent the members so swung.

'7. A support for movably mounting a sash with relation to a window frame having at each side of the sash a pair of crossed members pivotally connected to each other at an intermediate portion thereof for relative swinging about a hori zontal axis, at least the members of one pair-being connected for swinging about horizontal and vertical axes at one end to the sash and at their other ends to the window frame for swinging about at least horizontalaxes, and at least the members of the opposite pairbeing connected for swinging about horizontal and vertical axes at one end to the window frame and at their other ends to the sash for swinging about at least horizontal axes,

one end of each member also being connected to the sash or window frame for vertical sliding, one member'of each pair consisting of two parts both pivotally connected to the other member of the pair at said intermediate portion thereof, and means for releasably locking said parts together i against relative movement.

ARNOLD PERRETON. 

